Objective To observe and compare the anti-angiogenic effect of sorafenib, unfractionated heparin(UFH)and low molecular weight heparin (LMWH), singly used or in combination, with chick chorioallantoic membrane assay. Methods Sixty 8d-developed chick embryos were randomly divided into 6 groups (10 each): control group, sorafenib group, UFH group, LMWH group, sorafenib+UFH group, and sorafenib+LMWH group. Drugs were given respectively and incubation continued. The dosage of drugs for each embryo was 20 nmol of sorafenib, 5U of UFH and 5U of LMWH, respectively, and H-DMEM was applied to the embryo in control group in the same volume (2?l). After continuing incubation for another 72h, the anti-angiogenic effect in each group was observed and the vascular number in the chick chorioallantoic membrane was counted. Results Vascular number in single drug groups (sorafenib group: 8.9?1.9; UFH group: 7.6?2.3; LMWH group: 6.9?1.3) was significantly smaller than that in the control group (26.8?2.3, P

Objective To observe the safety and efficacy of ultrasound-guided radiofrequency ablation(RFA)with artificial pleural effusion for cancer of the liver located under the diaphragm.Method Fifteen lesions in 11 patients with cancer of the liver located under the diaphragm were treated by RFA with artificial pleural effusion,for which 500-1000 ml normal saline was injected into the pleural cavity.Results Artificial pleural effusion was finished successfully,the whole tumor for all of 15 lesions were visualized by ultrasound and the ideal puncture pathway were easy to find.The artificial pleural effusion was vanished within 1 week after operation.All of the lesions were treated with RFA and complete necrosis was obtained in 13(86.7%)of the 15 lesions by CT or MRI.No severe complication was observed.Conclusion RFA with artificial pleural effusion is a safe and effective treatment option for patients with liver cancer under the diaphragm.

AIM:To investigate the effects of ginsenoside Rg1 on the behavioral changes and the autophagy of hippocampal neurons of the rats with post-traumatic stress disorder (PTSD).METHODS:The Sprague-Dawley rats were randomly divided into 5 groups:control group, model group, fluoxetine group, low-dose ginsenoside Rg1 group and high-dose of ginsenoside Rg1 group.The combination of single prolonged stress and foot stock was performed to induce PTSD-like animal model.The rats in fluoxetine group was administered with fluoxetine by gavage at dose of 10 mg/kg for 21 d, while the rats in low and high doses of ginsenoside Rg1 groups were administered with ginsenoside Rg1 by gavage at doses of 20 mg/kg and 40 mg/kg for 21 d, respectively.The rats in control group and model group were both given saline by gavage for 21 d.The open-field test and stiff behavior test were used to examine the behavioral changes of the rats.The morphological structure and numerical changes of the hippocampal neurons were observed by Nissl-staining method.We adopted immunofluorescence labeling to observe the beclin 1 and LC3 positive hippocampal neurons and the levels of beclin 1 and LC3-Ⅱ/LC3-Ⅰratio in rat hippocampus.RESULTS:Compared with control group, decreased vertical movement time and horizontal movement time in open-field test and increased rate of stiff behavior in the stiff behavior test were observed in model group.Hippocampal neurons in model group were loosely arranged with vacuole-like structures and different degrees of cell shrinkage in contrast with control group.More beclin 1 and LC3 positive cells were identified, and higher protein levels of beclin 1 and ratio of LC3-Ⅱ/LC3-Ⅰ in model group were found as compared with control group.However, increase in movement in open-field test and decrease in stiff behavior were detected in the rats treated with low-and high-dose ginsenoside Rg1 as compared with the model rats.Meanwhile, vacuole structures, the numbers of beclin 1 and LC3 positive neurons, the protein expression of beclin 1 and LC3, and the total cell numbers were increased.Higher dose of ginsenoside Rg1 had more profound effects on these observed results.CONCLUSION:Ginsenoside Rg1 alleviates the abnormal behaviors in the PTSD rats, which might be related to the inhibition of abnormal autophagy of hippocampal neurons.

Objective To explore the effect of thrombolysis with anticoagulation treatment for early stage of posttraumatic and postoperative deep vein thrombosis of lower extremity. Methods The clinical data of 38 palients with early stage of posttraumatic and postoperative deep vein thrombosis(DVT) of lower extemity treated by thrombolysis with anticoagulation and dispersion drugs were analyzed retrospectively. Results The thrombolytic effect was significant. After the treatment, the deep veins were recanalization without regorging in 71.0% of patients. The total effective rate was 100%. Only one patient had hemorrhagic complication, two patients had symptomatic pulmonary embolism,but none of the patients died. Conclusions Thrombolysis with anticoagulation is an effective and safe method for posttraumatic and postoperative DVT in the early stage.

Objectives To investigate the overall prevalence of cardiovascular disease (CVD) in subjects hospitalized for chronic obstructive pulmonary disease (COPD),and explore the prevalence of the major CVD complications and trends in patients with COPD over a 10-year period.Methods Medical records in the PLA General Hospital,Beijing Union Medical College Hospital,and Beijing Hospital from 2000/01/01 to 2010/03/03 were retrospectively reviewed.A total of 4960 patients with COPD were reviewed in the study (3570 males,mean age,72.2 ± 10.5 years; 1390 females,mean age,72.0 ± 10.4 years).Results The prevalence of CVD in COPD patients was 51.7％.The three most prevalent CVDs were ischemic heart disease (28.9％),heart failure (19.6％),and arrhythmia (12.6％).During the 10-year study period,the prevalence of various CVDs in COPD patients showed a gradual increasing trend with increasing age.There was higher morbidity due to ischemic heart disease (P ＜ 0.01) in male COPD patients than in the female counterparts.However,heart failure (P ＜ 0.01)and hypertension (P ＜ 0.01) occurred less frequently in male COPD patients than in female COPD patients.Furthermore,the prevalence of ischemic heart disease decreased year by year.In addition to heart failure,various types of CVD complications in COPD patients tended to occur in younger subjects.The prevalence of all major types of CVD in women tended to increase year by year.Conclusions The prevalence of CVD in patients hospitalized for COPD in Beijing was high.Age,sex and CVD trends,as well as life style changes,should be considered when prevention and control strategies are formulated.

Objective To study the effects of abiotic elicitors methyl jasmonate (MeJA) and salicylic acid (SA) on the alkaloids accumulation and related enzymes metabolism inPinellia ternata suspension cell cultures. Methods Using the leaf petioles-derived suspension cell cultures as the study object, the culture duration, concentrations of MeJA and SA were determined to get the optimal alkaloids accumulation, and the activities of metabolic enzymes IMP dehydrogenase and sAMP synthase were also measured.Results A 9-fold of dried biomass and a 3-fold of alkaloids accumulation were observed inP. ternata suspension cell cultures after culture for 21 d. Both MeJA and SA could significantly promote the accumulation of alkaloids inP. ternata suspension cells. 150 μmol/L MeJA enhanced alkaloids content (4.7 mg/gDW) by 3.6 folds in comparison with control group, whereas 50 μmol/L SA showed a 2.5-fold increase. Meanwhile, 100 μmol/L MeJA and 50 μmol/L SA promoted the increase in IMP dehydrogenase activity by 3.0 and 3.7 fold respectively, and 150 μmol/L MeJA and 100 μmol/L SA showed the increase by 2.6 and 4.4 fold respectively.Conclusion Proper adding exogenous MeJA and SA can promote the accumulation of alkaloids inPinellia ternata suspension cell cultures.

Objective Developing an index system to evaluate the community teaching bases of general practice, for the purpose of identifying and completing at least one demonstration teaching base for general practice in each city in 2010. Methods Initial building of the index system by means of Delphi method and experts interview, followed by selection of experts for consultation, statistical analysis on the results of letter inquiries, and rounded up by the establishment of the index system for evaluation in the end. Results The recovery rates of a two-round Delphi questionnaire response are 94.12% and 100.00%respectively. Expert's authority degrees of five indexes are all over 0.8, which suggests high expert's authority. The average coordination coefficient of two-round Delphi experts consultation is 0.262and 0.534 respectively, showing good experts coordination. In the end, the study established four first-class indexes, ten second-class indexes, 41 third-class indexes and five additional indexes. Conclusions The index system is established in view of the current development of community teaching bases. It focuses on evaluating teachers, the teaching process and base's function. The evaluation system provides reference for selecting demonstration community teaching bases of general practice.

Mother-to-child transmission (MTCT) of hepatitis B virus (HBV) represents the most common mode by which children acquire HBV infection. For pregnant women with high viral load and positive hepatitis B e antigen (HBeAg), antiviral therapy during late pregnancy combined with timely and standardized inoculation of neonatal hepatitis B immunoglobulin and hepatitis B vaccine can minimize the possibility of MTCT of HBV. This review focuses on using and withdrawing antiviral drugs during pregnancy, managing postpartum hepatitis, and breastfeeding issues to further optimize the combined immunization and antiviral treatment strategies and seek the optimal solution to preventing MTCT of HBV.

In this paper, we lay down a homogenization training standard for resident standardized training through a joint discussion among experts from three national resident standardized training bases. The aim of the homogenization of resident standardized training quality shall be reached through the synchronous implementation of tutorial system and comprehensive formative evaluation, the strengthening of training quality process management and the promotion and advancement of training quality of resident standardized training.

Objective:To analyze the clinical and pathological features of asymptomatic primary hyperparathyroidism (PHPT) .Methods:A retrospective analysis was carried out in terms of the clinical characteristics and pathological data in 30 patients with asymptomatic PHPT and 86 patients with typical PHPT hospitalized in the Department of Endocrinology and General Surgery of Beijing Jishuitan Hospital from Jan. 2013 to Dec. 2018. There were 7 males (23.3%) and 23 females (76.7%) , with a male to female ratio of 1:3.3. The average age was 56.9±13.3 years. In typical PHPT group, there were 32 males (37.2%) and 54 females (62.8%) , with the average age of 46.4±17.0 years. Bone metabolism indicators included bone density and bone biochemical markers (parathyroid hormone, 25-hydroxyvitamin D and alkaline phosphatase) . The t test was used to compare normally distributed variables, the Mann-Whitney rank sum test was used to compare skewed distributed variables, and the χ 2 test was used to compare enumeration data. Results:The median serum parathyroid hormone and alkaline phosphatase were 144.2 (108.1, 207.0) pg/ml and 80.0 (53.7, 105.5) IU/L respectively, the average serum concentration of calcium was 2.80±0.20 mmol/L, which were significantly lower than those of the classic group ( P<0.05) . The median serum 25-hydroxyvitamin D was 12.14 (7.87, 14.38) ng/ml, which was higher than that of the classic group ( P<0.001) . Ten patients (33.3%) developed osteoporosis, and the incidence was lower than that of the classic group ( P< 0.001) . The median tumor weight was 0.80 (0.25, 1.98) g, significantly smaller than that in the classical group ( P=0.003) . There were 26 cases (86.7%, including 2 atypical parathyroid adenomas) of parathyroid adenomas and 4 cases (13.3%) of hyperplasia. Conclusions:The asymptomatic PHPT has the same sex ratio as the classic type, mainly female, but the average age is significantly higher than that in the classic type. Although asymptomatic PHPT in this study are all benign lesions, abnormal bone biochemical indicators, especially vitamin D deficiency, are common, which also lead to osteoporosis.